[HDFS-12388] A bad error message in DFSStripedOutputStream

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.0.0-beta1
• Component/s: erasure-coding
• Hadoop Flags: Reviewed
• Assignee: Huafeng Wang
• Reporter: Kai Zheng
• Created: 04/Sep/17 01:01
• Updated: 24/Apr/18 23:55
• Resolved: 05/Sep/17 12:47

Description

Noticed a failure reported by Jenkins in HDFS-11882. The reported error message wasn't correct, it should be: the number of failed blocks = 4 > the number of data blocks = 3 => the number of failed blocks = 4 > the number of parity blocks = 3

Regression

org.apache.hadoop.hdfs.TestDFSStripedOutputStreamWithFailure030.testBlockTokenExpired

Failing for the past 1 build (Since Failed#20973 )
Took 6.4 sec.
Error Message

Failed at i=6294527
Stacktrace

java.io.IOException: Failed at i=6294527
	at org.apache.hadoop.hdfs.TestDFSStripedOutputStreamWithFailure.write(TestDFSStripedOutputStreamWithFailure.java:559)
	at org.apache.hadoop.hdfs.TestDFSStripedOutputStreamWithFailure.runTest(TestDFSStripedOutputStreamWithFailure.java:534)
	at org.apache.hadoop.hdfs.TestDFSStripedOutputStreamWithFailure.testBlockTokenExpired(TestDFSStripedOutputStreamWithFailure.java:273)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.internal.runners.statements.FailOnTimeout$StatementThread.run(FailOnTimeout.java:74)
Caused by: java.io.IOException: Failed: the number of failed blocks = 4 > the number of data blocks = 3
	at org.apache.hadoop.hdfs.DFSStripedOutputStream.checkStreamers(DFSStripedOutputStream.java:392)
	at org.apache.hadoop.hdfs.DFSStripedOutputStream.handleStreamerFailure(DFSStripedOutputStream.java:410)
	at org.apache.hadoop.hdfs.DFSStripedOutputStream.flushAllInternals(DFSStripedOutputStream.java:1262)
	at org.apache.hadoop.hdfs.DFSStripedOutputStream.checkStreamerFailures(DFSStripedOutputStream.java:627)
	at org.apache.hadoop.hdfs.DFSStripedOutputStream.writeChunk(DFSStripedOutputStream.java:563)
	at org.apache.hadoop.fs.FSOutputSummer.writeChecksumChunks(FSOutputSummer.java:217)
	at org.apache.hadoop.fs.FSOutputSummer.flushBuffer(FSOutputSummer.java:164)
	at org.apache.hadoop.fs.FSOutputSummer.flushBuffer(FSOutputSummer.java:145)
	at org.apache.hadoop.fs.FSOutputSummer.write(FSOutputSummer.java:79)
	at org.apache.hadoop.fs.FSDataOutputStream$PositionCache.write(FSDataOutputStream.java:48)
	at java.io.DataOutputStream.write(DataOutputStream.java:88)
	at org.apache.hadoop.hdfs.TestDFSStripedOutputStreamWithFailure.write(TestDFSStripedOutputStreamWithFailure.java:557)
	at org.apache.hadoop.hdfs.TestDFSStripedOutputStreamWithFailure.runTest(TestDFSStripedOutputStreamWithFailure.java:534)
	at org.apache.hadoop.hdfs.TestDFSStripedOutputStreamWithFailure.testBlockTokenExpired(TestDFSStripedOutputStreamWithFailure.java:273)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.internal.runners.statements.FailOnTimeout$StatementThread.run(FailOnTimeout.java:74)